4 papers
Universal Quantum Random Access Memory: A Data-Independent Unitary with a Commuting-Projector Hamiltonian
Leonardo Bohac
Quantum random access memory (QRAM) is a central primitive for coherent data access in quantum algorithms, yet it remains controversial in practice because the wall-clock cost of "…
Read-Only Opacity and Restricted-Access Inference on Quantum Memories via U-QRAM
Leonardo Bohac
Universal QRAM (U-QRAM) is a fixed, data-independent unitary interface that implements coherent random-access reads relative to a designated computational "truth-table" basis on th…
Bias-Class Discrimination of Universal QRAM Boolean Memories
Leonardo Bohac
We study the discrimination of Boolean memory configurations via a fixed Universal QRAM (U-QRAM) interface. Given query access to a quantum memory storing an unknown Boolean functi…
Closed-Form Optimal Quantum Circuits for Single-Query Identification of Boolean Functions
Leonardo Bohac
We study minimum-error identification of an unknown single-bit Boolean function given black-box (oracle) access with one allowed query. Rather than stopping at an abstract optimal…